Pick an investor. See how every stock measures up.

The most demanding of the seven. Buffett wants a moat that lasts decades, management that thinks like owners and a price that doesn't already assume perfection. If you'd happily own it for ten years without checking the quote, start here.

• ROE ≥ 15% without leverage doing the work
• Earnings positive every year of the last five
• Owner earnings yield ≥ 5–8%, share count flat or shrinking

Buffett's teacher wrote the rulebook in 1949. Graham's approach is the most conservative of the seven: each test is modest, but none can be skipped. If you sleep better when a stock trades below book value, start here.

• P/E ≤ 15 and P/B ≤ 1.5
• Current ratio ≥ 2, debt/equity ≤ 1
• Profitable in each of the last five years

Lynch ran Fidelity's Magellan Fund for 13 years at about 29% a year. His rule was to pay a growth price only when the growth is proven. The PEG ratio is the test: earnings growth has to keep up with the price. If you like growing companies but won't pay any price for them, start here.

• PEG ratio ≤ 1.0 (price scaled to growth rate)
• EPS CAGR ≥ 15% over five years
• Revenue growth ≥ 10% annually, FCF positive

Greenblatt's Magic Formula is the simplest of the seven: just two measures, return on capital and earnings yield, ranked together. It looks for good businesses at cheap prices. If you want a clear, mechanical approach, start here.

• Earnings yield (EBIT/EV) ≥ 10%
• Return on capital (ROIC) ≥ 25%
• Buy a basket of 20–30, hold one year, repeat